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Finding the Fourth Proportional to 22,679.57, 34,020.12 and 7,888.61

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Solution

The fourth proportional to 22,679.57, 34,020.12 and 7,888.61 is: 11,833.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,679.57 : 34,020.12 = 7,888.61 : x
  2. Step 2: Convert to fraction form
    22,679.57/34,020.12 = 7,888.61/x
  3. Step 3: Cross multiply
    22,679.57x = 34,020.12 × 7,888.61
  4. Step 4: Simplify right side
    22,679.57x = 268,371,529.09
  5. Step 5: Solve for x
    x = 268,371,529.09/22,679.57
  6. Step 6: Final answer
    x = 11,833.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.